Support for drills or the like.



PATENTED JUNE 19, 1906.

, A. BALL. SUPPORT PoR DLILLs 0L THE LLKL.

APPLIOATION FILED DBO.16. 1904.

wj/neLsse-s:

ANDREW. a. GRAHAM no.. Fnuro-Llmoanwnsns. wAsmNsrnN. n. G.

supportsffor drilling-machinesor theL like, be!

IINITED sTAfrEs PATENTE.y OEEIOE.`

ALBERT BALI., OroLAREMoNr, NEW'V HAMPSHIRE, AssIeNOR To SULLIVAN MACHINERY VCOMPANY, OE OLAREMONT, NEw HAMP snr-RE, A CORPORATION OENEW HAMPSHIRE.

p Noa 823,662;

specification of Igettfs' Parent.'

YApplicationflied-Immuner16,1904. seriai-iafzamiiif To1 wllv-whomf twat/'concerns Y Y Be-v it' known that I',-ALBERT BALL, a' citi= zen of the United States, ,residing at Claremont, the county of Sullivan` and State of New Hampshire, have invented anf'lmprovee ment- Supports for Drillsv orl the Like, of the following description, in connec-ftiorr withthe accompanyin fdrawings, isfa specification, lillzelettersron'f t edrawmgsrepresenting like parts.

. invention `consistsin improvements in Ing more part'icularly-intended,y as isthefillustrative" embodiment thereof herein shown,` for supporting. the Vcolumns upon which are mounted drills'employed in tunnel-work;

My invention' will be best understood by reference to the following description; taken inl connection with the accompanyingill-'ustration of one specific embodiment thereof, while its scopev will`l`r be more particularly pointed out in the appended claims.

In the drawings, Figure 1 showsr in eleva-'- tieni onel form of-'my invention-Jap lied' to a drillfcolumn, the arm; and drill-sa dle being also' shown as mounted" upon said column; Fig. 2 is a'sec'tion elevation); partially broken away, takenI throughA the foot andr baseoffthe column'. Figs; Sfand; 4 are views-, in plan andi elevation,` respectively, ofthe columnefoot. Fig. 6, a-lplan off'thefcushioning-blockf.` Fig. 7 shows-famodification Referrin to the drawings', I have there`v shown a co umn a, of ordinary form, carrying the usualv arm'` b and drill-saddle c, adapted to receive the'` drilling-machine. The column here shown is surmounted by thecapd, provided with spurs adaptedito sink into a yielding or cushioning substance, such as a block of wood e, which it is customary to interpose between the column and the roof of the heading or drift in which the drill is em loyed to give a more secure hold to the co umn andl ter, as is usual, may be screwed and wedged into 'position betweenv the floor and thev roof of the tunnel-'.-V y

Referring more particularly'toI Figs.: l tof, inclusive, tzhetcolunmebasexi, whichis prefer-f ablyl Yof lmetalfis formed withf a recess eravity y', whicl'rmaylY be' of any? `suitable angularA shape, inclosedbyjy verticalv walls, but which'v herein is substantially square'.4 Preferably 4interposed between. the column` and the' base and here lyingwithin the cavity or recess is suitable cushionin means; herein :consisting of the ,wooden bloc de, restinglf uponY the spurs Zfthe latter formed inthe-base at the bottom ofthe cavity. 4 AUpon the cushioning-'block rests the columna, the partthereofvinfintermediate contact .withi the' block being the foot m", herein provided with downwardl'yepointed spurs', which likev the spurs l sinkinto the face of the block when the column i'sf'in position and the sc rewsf arev tightened.

V a' substantially square-shape, adapted freelyl to, enter the recess jf an-drwhile fitting. loosely therein prevented from'turnin'g by theinclos ll ing walls thereof. This throughI the interlockinglwal 'sof-.the foot and base positively toY preventthe footy and the" column attac'hed thereto' from lturning rela; .tively to the base. mations of theJ foot and? base mayl evidently ,be employed but the'one described is both Other interlocking fori-- simple and effective. It has heretoforebeen lcom'mon to mountthe columnlfootu onf' a Woodenf block, f but the'block has" been "olted 'rigidly to: the', threaded base part Land- .the spurred foot nrigidly bolted toI theblo'ck by at Single central bolt.' In the; embodimentyof my'invention shown not onlyislthe vibrationf of the'columnmore effectively prevented', the block c being rigidly secured neither to the foot nor the base, but the column and its foot are removable from the base and free for withdrawal therefrom as soon asl the screws ff are turned to slack up on the pressure. lNotwithstanding the fact that the foot yis freely movable from the base, the column is positively prevented from turning by the interlocking formation given them.` Thus when the column is in place and the drilly is in use the vibration thereof is checked not only at the roof-block e and the floor-block h, but also at the block 7c. The column-foot is held against the latter only by the frictional con- 'rovidesmeans"- IOO tact resulting from the compression of the screws, the turning of the column being prevented by the fit ofmthe foot Within the cavity.

The ready separation of the base of the column is a matter of great practical convenience, for it is customary in working headings to set up the drill as soon as enough of the blasted rock can be cleared to obtain a footing for the column. The column in its frequent transportations must be taken over the heaps of blasted stone every time it is set up, and this obviously can be accomplished with much greater ease and readiness when separated from the heavy and cumbersome base than when attached thereto.

While I prefer the construction described for the reasons given, it will be obvious that even in the particular form of support shown various changes may be made, While still attaining some or all of the objects of my invention.

By way of further illustration it may be ossible to avoid the use of a positive interocking formation between the base and the foot by some such construction as is illustrated in Fig. 7. There the foot may be round and capable of being turned within the cavity, while the spurs a are made lar e enough to sink deeply into the wooden bloc r, and the latter is enlarged approximately to fit the cavity, so as to prevent the splitting of the wood, and the grip thus obtained by the foot upon the base may be relied upon to prevent the column from turning, while still leaving the latter, with the attached foot, free for withdrawal from the base.

It will be obvious that my invention is not limited to the particular embodiment or embodiments herein shown or to those suggested, but that its details may be varied within wide limits without departing from the spirit thereof.

I claim- 1. A double-screw column for a drillingmachine provided with a base having a cavity therein, a block resting upon the bottom of said cavity and a foot secured to said column said foot resting upon said block and shaped to conform to the walls of said cavity. 2. In an apparatus of the class described,

the combination with a column having drillsupporting means thereon, of a base provided with a cavity, and cushioning means within said cavity extending to near the top thereof, and afoot on said column adapted to engage said cushioning means and constructed to interlock with said base to prevent said column from turning with relation to the base.

8. In an apparatus of the class described, the combination with a column having drillsupporting means thereon, of a base, cushioning means between said base and said column, and means ositively to lock the parts to prevent the co umn Jfrom turning with relation to the base.

4. In an apparatus of the class described, the combination with a column, of a base upon which said column is mounted cushioning means between said column and said base, and means positively to prevent said column from turning, said column being free for withdrawal from said base.

5. In an apparatus of the class described the combination with a column and base, a cushioning-block between said base and said column, said column being free for withdrawal from the block and interlocking surfaces between said column and said block, thereby positively to prevent the former from turning.

6. In an apparatus oi the class described the combination with a column of a pair of adjusting-screws therefor, a base between said screws vand upon which said column is supported, and a cushioning-block loosely interposed between said column and said base.

7. In an apparatus of the class described the combination with a column member having drill-supporting means thereon of a base member upon which said column member is supported, one of said members having a recess, and cushioning means within said recess and between said column and base members. l In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ALBERT BALL.

Witnesses:

FRANK A. BALL, LEE A. KNIGHTS. 

